The circumference is about 12. This would been a bit easier if I knew the diameter.
Answer:
91 days
Step-by-step explanation:
Given that,
A planet is at a distance of 98,000,000 km from the centre of the star.
It orbits at an average speed of 45,000 km/h.
The speed of an object is given by the distance covered divided by the time taken. So,

or
t = 90.74 days ≅ 91 days
So, the planet take 91 days to orbit the star.
girls: 9 boys: 11
Step-by-step explanation:
16 (total girls) - 7 (the amount of girls hat prefer grapefruit) is 9
and 14 (total boys) - 3 (the amount of boys that prefer grapefruit) is 11
Answer:
ana spends 2 hours 50 minutes working
Step-by-step explanation:
ana starts working at 2:40 pm and finishes work at 5:30 pm.
Let's bear in mind that there is 60 minutes in one hour.
Ana started 2.40 , the :40 means 40 minutes
While I 5:30, the :30 means 30minutes
The amount of time spent by anna at the working place.
5:30-2:40= 4 hours minus 2 hours, 90 minutes- 40 minutes
= 2 hours 50minutes
ana spend 2 hours 50 minutes working